Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 25 for “"plasmonic materials"”.
-
Engineering electronic and plasmonic materials for novel photonic devices
In the last decade well known materials such as metals and silicon have emerged as new materials for photonic applications leading to the growth of two important fields: plasmonics and silicon photonics. This thesis is divided in two parts with part I focusing on plasmonics, and silicon photonics …
-
Deposition of electronic and plasmonic materials inside microstructured optical fibres
… technology for fully integrated photonic/plasmonic devices. These fibres have demonstrated the enhancement of Raman signals from molecules adsorbed onto the inner metal surfaces and thus ideally suited for Surface Enhance Raman Scattering molecular detection.
-
Functional nanostructured plasmonic materials: fabrication, simulation, imaging and sensing applications
… (SERS), and photovoltaics. Novel classes of plasmonic crystals fabricated with precisely controlled arrays of subwavelength metal nanostructures provide a promising platform for the sensing and imaging of surface binding events with micrometer spatial resolution over large areas. Soft …
-
Designing Plasmonic Materials And Optical Metasurfaces For Light Manipulation And Optical Sensing
Metamaterials are artificial materials designed to create optical properties that do not exist in nature. They are assemblies of subwavelength structures that are tailored in size, shape, composition, and orientation to realize the desired property. Metamaterials are promising for applications in …
-
A Platform for Practical Nanophotonic Systems Nitrides and Oxides for Integrated Plasmonic Devices
The fields of nanophotonics and metamaterials have revolutionized the way we think of optical space (ε,µ), enabling us to engineer the refractive index almost at will, to confine light to the smallest of volumes, as well as to manipulate optical signals with extremely small foot prints and energy …
-
Refractory oxides based multilayered core@shell plasmonic nanostructures
Plasmonic devices have received a great deal of attention in the past decades due to their ability to concentrate electromagnetic radiations to sub-diffraction limited spots of the order of a few nanometers while enhancing the field intensity by a few orders of magnitudes. These remarkable …
-
Exploiting plasmons to sense interfacial changes at the nanoscale
… at interfaces and potential avenues for materials development. As a class of materials, plasmonic nanomaterials are a promising approach for probing chemistry at interfaces. When excited with an incident electric field like light, plasmonic nanomaterials exhibit localized surface plasmon …
-
Mid-IR plasmon-mediated photoluminescence from gallium-doped zinc oxide bow-tie nanoantennas
… of reducing these non-radiative losses is to use plasmonic materials due to their ability to enhance light-matter interactions. For inherently inefficient sources, such as many mid-IR emitters, coupling of the emitting element to a plasmonic structure could enhance emission efficiency. This thesis …
-
Self-assembly of lead-halide-perovskite laser particles
… localization. In addition, by incorporating plasmonic materials, I demonstrated plasmonic-lasing particles as small as 580 nm. This work paves the way for highly multiplexable laser particles for biomedical applications.
-
Probing Plasmon-Molecules Interactions with Surface-enhanced Raman Spectroscopy: Towards the Guided Design of Plasmonic Photocatalysts
Plasmonic materials have proven their strong candidacy as photocatalysts with their unique optical properties and strong interactions with light. The possibility of driving chemical reactions with sunlight to achieve high efficiency and selectivity has driven a lot of research exploring plasmonic …
-
Plasmonic devices based on transparent conducting oxides for near infrared applications
… have been many breakthroughs in the field of plasmonics and nanophotonics that have enabled optical devices with unprecedented functionalities. Even though remarkable demonstration of at photonic devices has been reported, constituent materials are limited to the noble metals such as gold (Au) …
-
Enhancing solar cells with plasmonic nanovoids
This thesis explores the use of plasmonic nanovoids for enhancing the efficiency of thin-film solar cells. Devices are fabricated inside plasmonically resonant nanostructures, demonstrating a new class of plasmonic photovoltaics. Novel cell geometries are developed for both organic and amorphous …
-
Synthesis, Modification, and Application of Colloidal Aluminum Nanoparticles
… Recent interest has shifted from traditional plasmonic materials, Au and Ag, to Al due to its low cost, high abundance, and favorable properties in the ultraviolet spectral region. This thesis will discuss the synthesis, surface modification, and application of plasmonic Al nanocrystals and …
-
Applications of Cathodoluminescence in Plasmonic Nanostructures and Ultrathin InAs Quantum Layers
… have been broadly applied to investigate nanomaterials. Structural or compositional information is commonly acquired using electron microscopes. Moreover, taking advantage of the super spatial resolution of the focused electron beam, optical properties of nanomaterials can be also obtained. …
-
Nanophotonics for tailoring the flow of thermal electromagnetic radiation
… of heat transfer for arbitrary geometries and materials. Second, we study the near-field heat transfer between two sheets of graphene and show that thermally excited plasmon-polariton modes can strongly mediate, enhance, and tune the energy exchange in this system. We predict maximum transfer …
-
Development of Plasmonic Nanoplatforms for Diagnostics, Therapy, and Sensing
… distinct characteristics of gold nanostars, new plasmonic materials for diagnostics, therapy, and sensing can be synthesized. The work described herein is divided into two main themes. The first half presents a novel, theranostic nanoplatform that can be used for both SERS detection and …
-
Enhanced Light-Matter Interactions in Complex Photonic Systems
… can stimulate unusual light interactions with plasmonic materials. In a one-dimensional metamaterial, i.e., an artificially engineered periodic structure, we show that perturbing the discrete translational symmetry can induce a topological knot in reciprocal space. It enables strong nonlocal …
-
Towards sustainable plasmonics: a study on the shapes and plasmonic properties of magnesium nanoparticles
… experimental and theoretical research. For plasmonics, where nanostructures are exploited to focus and channel light in the nanoscale, material and structure effects are studied in relation to optical properties. Understanding such light-matter interactions can inspire the design and …
-
From molecular Au(I) complexes to subnanoclusters and nanoparticles: study of the influence of secondary interactions in (photo)catalytic systems
… achieved. Furthermore, the ability of these plasmonic materials to promote hydrogen generation by the dehydrogenation reaction of N-Heterocycles has been evaluated, achieving promising results under mild reaction conditions.
Page 1 of 2